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    • 1. 发明专利
    • Hydraulic control apparatus of work machine
    • 工程机械液压控制装置
    • JP2013249849A
    • 2013-12-12
    • JP2012122818
    • 2012-05-30
    • Kobe Steel Ltd株式会社神戸製鋼所Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • SUGANO NAOKIMAEKAWA TOMOHITOKOGA NOBUHIROYOSHIHARA HIDEKI
    • F15B11/02E02F9/22F15B11/00F15B11/17
    • PROBLEM TO BE SOLVED: To provide an apparatus controllable to allow a main actuator and an option actuator of a work machine to operate at proper speeds.SOLUTION: An apparatus includes: first and second hydraulic pumps 11, 12; a first main supply oil passage 25 and a first main control valve 15, which introduce discharge oil of the first hydraulic pump 11 to a main actuator 7; an option supply oil passage 26 and an option control valve 16, which introduce the discharge oil of the first hydraulic pump 11 to an option actuator 8; a second main supply oil passage 29 and a second option control valve 19, which introduce discharge oil of the second hydraulic pump 12 to the main actuator 7; a main operation device 31 for the main actuator; an option operation device 32 for the option actuator; and a supply switching device 40-42, 60 shutting off supply of hydraulic oil to the main actuator 7 through the first main supply oil passage 25 when simultaneous operation of both operation devices 31, 32, and allowing the supply when operation of only the main operation device 31.
    • 要解决的问题:提供可控制的装置,以允许作业机械的主致动器和选件致动器以适当的速度运行。解决方案:一种装置包括:第一和第二液压泵11,12; 第一主供油路25和第一主控制阀15,其将第一液压泵11的排出油引入主致动器7; 选择供给油路26和选择控制阀16,其将第一液压泵11的排出油引入选择促动器8; 第二主供油路29和第二选择控制阀19,其将第二液压泵12的排出油引入主致动器7; 用于主致动器的主操作装置31; 用于选项致动器的选项操作装置32; 供应切换装置40-42,60同时操作两个操作装置31,32,通过第一主供油路25关闭向主致动器7供给液压油,并且仅在主操作 操作装置31。
    • 2. 发明专利
    • Gripping device and work machine equipped with the same
    • 搬运装置和装备的工作机器
    • JP2011220017A
    • 2011-11-04
    • JP2010091496
    • 2010-04-12
    • Kobe Steel LtdKobelco Contstruction Machinery Ltdコベルコ建機株式会社株式会社神戸製鋼所
    • TSUTSUI AKIRAKAWAI HIROAKIKOGA NOBUHIRO
    • E04G23/08E02F3/36
    • PROBLEM TO BE SOLVED: To provide a griping drive unit capable of suppressing sudden change in gripping force while achieving both of the gripping of a processing object with large gripping force and the fine adjustment of gripping force.SOLUTION: A gripping device comprises: a coil spring 24 which is provided between gripping members 18A and 18B and a gripping cylinder 19, elastically deformed by the reaction force applied by a processing object to permit displacement of the gripping cylinder 19 with respect to the gripping members 18A and 18B, and increases the contact pressure of the gripping members 18A and 18B against the processing object by its resilient force; a pressure sensor 44 detecting whether the gripping cylinder 19 and the gripping members 18A and 18B are connected together to be in a transmittable state so that the driving force of the gripping cylinder 19 may be directly transmitted to the gripping members 18A and 18B, or not; and a control part 40 causing a delay during the change from the driving force at the time of detection to a target driving force if it is detected that the cylinder and the members are in the transmittable state.
    • 要解决的问题:提供一种能够抑制夹紧力的突然变化同时实现具有大的夹紧力的加工对象的夹持和夹持力的微调的抓地驱动单元。 夹持装置包括:螺旋弹簧24,设置在夹持构件18A和18B之间,夹持缸19由于加工对象施加的反作用力而弹性变形,从而允许夹持缸19相对于 并且通过其弹力使夹持构件18A和18B相对于处理对象增加接触压力; 压力传感器44检测夹持缸19和夹持构件18A和18B是否连接在一起以处于可传送状态,使得夹持缸19的驱动力可以直接传递到夹持构件18A和18B ; 以及如果检测到气缸和构件处于可透射状态,则在从检测时的驱动力到目标驱动力的变化期间引起延迟的控制部40。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Working machine
    • 工作机
    • JP2009286588A
    • 2009-12-10
    • JP2008142128
    • 2008-05-30
    • Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • KOGA NOBUHIRONAKAMURA HITOSHI
    • B66C13/14B66C1/06E02F9/00
    • PROBLEM TO BE SOLVED: To provide a working machine capable of securing visibility, and capable of mounting a generator unit in a state of maintaining a small turning characteristic in a small turning type hydraulic excavator. SOLUTION: This working machine has an upper turning body, an engine room arranged in a rear part of the upper turning body and storing an engine, a work attachment having a lifting magnet at a tip, and depressingly and elevatingly installed in a front part of the upper turning body, and the generator unit for supplying electric power to the lifting magnet. The generator unit is arranged on the upper turning body without interfering with a depressing/elevating work attachment between the work attachment and the engine room. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够确保可视性并且能够在小型转向型液压挖掘机中保持小转弯特性的状态下安装发电机单元的作业机械。 解决方案:该工作机具有上转体,发动机室,其设置在上转体主体的后部,并存储发动机,具有顶端的起重磁铁的工件,并且按压并升降地安装在 上转体的前部,以及用于向起重磁铁供给电力的发电机单元。 发电机单元布置在上转体上,而不会干扰工件和发动机室之间的下压/升高工作附件。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Pressure relief method and pressure relief device for hydraulic piping
    • 用于液压管道的压力消除方法和压力消除装置
    • JP2007303551A
    • 2007-11-22
    • JP2006132547
    • 2006-05-11
    • Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • YAMAZAKI TAKANORIKOGA NOBUHIRO
    • F16L55/07
    • PROBLEM TO BE SOLVED: To prevent damage to a seal member and the spouting of oil caused by the pressure relief of hydraulic piping. SOLUTION: A pressure relief unit 7A is detachably mounted to a coupler 2 prepared at the end of the hydraulic piping 1 at the time of piping separation. The pressure relief unit 7A is provided with a mounting section 8 in a coupler structure connected with the coupler 2 and a flexible absorbing body 9 in a cylinder structure. The pressure relief unit 7A automatically absorbs an amount of volume expanded oil into the absorbing body 9 via the coupler 2 and internal passages 3 and 11 of the mounting section 8 caused by a temperature rise of the oil, and is removed at the time of piping connection. Thus, piping connection work can be facilitated by reducing the pressure in the hydraulic piping 1, and damage to the seal member 6 caused by pressure relief can be prevented. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:防止液压管道的压力释放导致密封件损坏和油喷溅。 解决方案:压力释放单元7A可拆卸地安装到在管道分离时在液压管道1的端部处制备的联接器2。 压力释放单元7A设置有与联接器2连接的联接器结构中的安装部分8和气缸结构中的柔性吸收体9。 减压单元7A经由联接器2和由油的温度升高引起的安装部分8的内部通道3和11自动地将一定体积的膨胀油吸收到吸收体9中,并且在管道时被去除 连接。 因此,可以通过降低液压管路1的压力来促进管道连接作业,并且可以防止由压力释放引起的密封构件6的损坏。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Hydraulic pump control device for construction machine
    • 液压泵控制装置
    • JP2014098453A
    • 2014-05-29
    • JP2012251054
    • 2012-11-15
    • Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • KOGA NOBUHIRO
    • F15B11/028E02F9/22F15B11/00
    • PROBLEM TO BE SOLVED: To prevent an occurrence of over-torque caused by an increasing of a set pressure of a variable relief valve in construction machine comprising a variable volume type pump for controlling a horse power and a fixed volume type pump of which pump pressure is controlled by a variable relief valve.SOLUTION: This invention is constituted such that a variable relief valve 22 is installed in a pump circuit of a fixed volume type dozer pump 13, and there is provided a relief pressure gradual increasing control for increasing a set pressure of the variable relief valve 22 to a preset set value with a pre-set delay time when a dozer cylinder 16 with a dozer pump 13 being applied as a hydraulic source is operated.
    • 要解决的问题:为了防止由于用于控制马力的建筑机械中的可变安全阀的设定压力的增加而引起的过度转矩的发生和泵压力的固定体积型泵 由可变溢流阀控制。解决方案:本发明构造成使得可变溢流阀22安装在固定体积型推土机13的泵回路中,并且提供了一种用于增加设定值的溢流压力逐渐增加控制 操作具有作为液压源的推土机13的推土机16的预设延迟时间时,可变溢流阀22的压力达到预设的设定值。
    • 10. 发明专利
    • Demolition machine
    • 拆卸机
    • JP2008272648A
    • 2008-11-13
    • JP2007118542
    • 2007-04-27
    • Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • NAKAMURA TAKANOBUKOGA NOBUHIRONAKAMURA HITOSHI
    • B02C1/02B02C21/02E02F3/36E02F3/38E04G23/08
    • PROBLEM TO BE SOLVED: To provide a demolition machine capable of easily suppressing the total height of a boom within the limit of a vehicle height without detaching a guard device upon transportation of the boom.
      SOLUTION: The boom prepared by successively connecting a plurality of boom elements is connected to the demolition machine having a cab, and a crusher (operation attachment) is attached to the tip of the boom. The guard device 20 for preventing pieces crushed by the crusher from dropping to the cab is disposed on the back surface side of a fourth boom body 9 among the boom bodies. The guard device 20 is constituted so as to be freely switchable between an operational posture A erected for the back surface of the fourth boom body 9 and a transportation posture falling to the back surface side of the fourth boom body 9.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够在高度限制下容易地将悬臂的总高度抑制在高度限制下的拆除机器,而在搬运时不会分离防护装置。 解决方案:通过连续地连接多个起重臂元件而制备的起重臂连接到具有驾驶室的拆卸机,并且将破碎机(操作附件)附接到起重臂的末端。 用于防止由破碎机破碎的碎片落下到驾驶室的防护装置20设置在悬臂体中的第四臂体9的背面侧。 保护装置20构成为能够在竖立于第四起重臂主体9的背面的操作姿态A和落入第四起重臂主体9的背面侧的运送姿态之间自由切换。 (C)2009,JPO&INPIT